Pump jack



` N NMIIMM,` or MINNEAieoLIs, MINNESOTA,` ssIeNon To MINNEAPOLIS `iiN- GINNERNINGN ooMmNY,-or MINNEAPOLIS, MINNESOTA, A ooRIeoRATIoN oF; MIN` NnsofIfA t I e L NIUM'I? .Inox N; N N N N Appiiationi filed FfebrNuaiy 1s; i927. serieu No. 169,246;

" My "invention relates to` pump jaoks and In the applioation of pump jacks tothe or'-` j hasfor its objeotjto provi-de a jack actuated dinary"pumps;` for furnishing Waterfor` do-` Nbyfmeansofa Ncrankinwhichthe Noonnecting rnestio` and farm purposes, it is highly del rod thereof travel-s substantially iNnN a straight sii-able to have the connecting rod move sulo-N line `the same general direction as 'the pump stantially in a `straight line and in a direc`- 55 "rod, l N "F NI N N s N tion correspondingwith that of the pump Anotlfien` object of the invention residesin rod and also to travel more rapidly duringits providinga support and injournalling there-N return stroke than during its suction stroke; I "Ninfa shaftor Carrying said crank, said supe invention accomplishes these resultsin a N I porthavingpivotedtoit a rocking arm and simple and expeditious manner als will loe-60 t I in futherfproviding aflinlrN pivoted tNo said come presently apparent. j v creNLNn'lnI said eonnectingrod, arm and link beor the purposes of :illustrating the applifling all pivotedtogetherjf l I catlon of my invention,"NI`have Nshovvn in the y N` Astill further Iolojeet of the invention re- I drawing an ordinary N` suction pump A which "t I `NsNidesViNn dispNosNiNngNsaid shaftto one side of @Ompl'lses a body portion 10 ineludinga base 65 N said eonneetingfrod and positioningthepivot l1 and a `eolulnnl2`. This column has at `N0`f`1sad arm abeveeaid Shaft Sethat the Nmevetaehed` to the upper portion thereof the usual mentfof said" connecting rod isffguided by pump top 13N provided with aguide bushing said` armfanNdN "is actuated Nby said I Crank 14: which guides `the reeiprocationof a pump N .thmughSidlmky N rod 15.1" The cylinder of thepump which has y NN RNA-still "further objeetfgof theinvention re;- 110t been Shown inthe drawings,may be dis-N JeideeNNfNSpeetienin the pyet ef said `erm posed beneathjthe ground at the proper ele-` N inNNNsuelN1N` allegation t atfthe movement of the vation and serves to `elevate the Water inthe N NarmNN below N IthNeN horizontal plane passing Ipumprbody 10 Wherethe saine may be dis-. fNtlNii-oughits pivot is greater `than above it so charged through a Vspout 16.' The usual fulfegjtegiye e: Nelew Suction StrekeendV e quick I crum post andhandle employed with pumps INNgretmLn stketjthe pump rei N f N N N of the type lllustrated maybe merely disconfeature eNftheNinveIitien regideein` fermnected when employing my jack orjoperat- I iegeeidsuppereeseeesefoeeoneining driv-I Herbe Pump ee if desired meybe eeeieely ing"`ge`arsforoperating said shaft andin ar` removed from thepump `struetureas shown". 80 ranging on theulpper portionof said ease a l TheINJack' proper comprises a case B best I `standardtoNvvhie `N saidarrn may be pveted, illustrated `N1n Fig. 1,"Wh1ich is constructedgof "N.Withfthefforegoing "and other objects in tivo halves 17 Jand 18 `formedwith cNoInple-` I I yiNew, fyvhliehwilleppeer inthefellewing de- Iniental flanges 19 and 20. `These case halves N`seliptien7- the invention pesdeein the nevel are' bolted together by means of I bolts 21 85 combinati@ and arrangement 0f parte and `Whih pass through te flanges 19and`20, NN`iN`11NItheIidetaj1sN ofeengtruetjenhereinefter de N When assembled thecase provides a cylinder Seribedfand eleimed, `chamberWhich isy adapted toreceive a por,-

" l In the drawings `illustratinrgN IenNlleNediN.N tion of the driving mechanism for thejaok.

mentfof myfinventionzIN -Ii Centrallylocated relative to" the lease B, are 90 Fig-l( N N N'sNNaside elevational vievNvN` of a pump disposed two horizontalbearings N22 and 23 Nhewjngf heepplieetien ef my imppevedjeek which Journal atransversely arrangedshaft thereto. N`j I" 4 NN N N 24:; Shaft has keyed to Nit," as shown F'gxjajisrafplangseaionai View taken on `i"11fl`liia 3,12 Worm Wheel 25fflilepeeed Within e2N-Nf;2ofFg;I 1.] N jN N theeaselB,wvhiehmeshes WithlfaN correspondnigeria a ieagauainal eievainalyview mawerm.26;e11teehedte e ehefeQT-` The similar NNtoN F ig. Nlfoff a portion yofkthe :strue-` shaNftQN? is journalledintwolearings 28 and `tUlretherein"illustrated Nvvith apart,N of the c 127 formed on thelowerinostportion ofNeaNse "oase removedttoillustrate Nthefcdrive gears "Bf Betvveentheend ofthe Worm 26Nand hear-I Withinthesame."` f y ing fl27is`di'sposed an endfthrust ball bearing UNITED STATES PATENI eprice N tion, as herein disclosed, may be'made within n thescope of what is claimed without dep parting fromthe spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is: i

l.` A pump jack comprising a case, a shaft journalled insaid case, a crank attached to said shaft, a connecting rod disposed to one side of said shaft, a link pivoted to said f m crank, `anupstanding standard formed `on said case, an arm pivoted inV said standard, said connecting rod, link and arm being all connected together and transmission gearging within said case for operating said shaft. 2. A pump jack comprising a support, a p shaftjournaled in said support, a crank on said shaft, a connecting rod for attachment to the pump `rod of a pump and disposed to y one side of said shaft, a link pivotedto said crank and connected `with said connecting 1 rod, anarm pivoted to said support and con nected with said connecting rod for guiding 1 its movement,the pivot. for said arm being 25 disposed above said shaft and in substantial y vertical alignment therewith.

i 3. A pump jack comprising a support,` a y w shaft journaled in said support, a crank on y `said "shaft,`a connecting rod forA attachment to the pump rod of a pump and disposed to one side ofsaid shaft, a `link pivoted to said i crank and connected with said connecting n. rod, an arm pivoted to said support and con` y nected with said connecting rod for guiding `its movement, the pivot for said arm being disposed above said shaft, said arm swinging `between a substantially horizontal extreme position to a downwardly inclined extreme i. .y position. i A y "4o .y 4. A pump jack comprising a caseformed i of halves joined in a vertical plane, a shaft journaled in said case between the `halves thereof, a crank attachedv to said shaft, a conn `necting rod disposed to one side of said shaft, y a link pivoted to said crank, an upstanding p .n "standard formed on one of the halves of said case lying substantially in the `plane of attachment thereof, an arm pivotedto said standard, said connecting rod, link and arm lbeing all connected together, and transmisfsion` gearing within said case for operating f saidshaft. y n `In testimony whereof, I have signed .my

" name to this specification.

w ERNEST A. MUMM. 

